Filter for milk-pails.



J. P. HORNE;

FILTER FOR MILK FAILS.

APPLICATION IILEI) JUNE 10, 190B.

Patented Apr. 27, 1909.

THE NORRIS Psrsns cm, WASHINGTON, v. c.

UNITED STATES PATENT OFFICE.

JOHN F. HORNE, OF PORTLAND, MAINE, ASSIGNOR TO REVOLVING DAIRY FILTERCOM- PANY, OF PORTLAND, MAINE, A CORPORATION OF MAINE.

FILTER FOR MILK-FAILS.

Specification oi Letters Patent.

Patented April 27, 1909.

To all whom it may concern:

Be it known that I, JOHN F. HORNE, of

Portland, in the county oi Cumberland and State of Maine, have inventedcertain new and useful Improvements in Filters for Milk-Pails, of whichthe following is a specification.

I My invention relates to a milking pail for receiving milk direct fromthe cow and the object oi the invention is to construct a milkmg pail inwhich the milk will pass into the pail free from dirt and withoutstraining through an objectionable mass of dirt.

In the ordinary milking pail even when it is provided with a receivingstrainer, the dirt which falls into the strainer from the cow graduallyaccumulates into a mass of filth through which all the milk is obligedto pass. An objectionable and unsanitary condition is thus createdresulting in contamination to the milk, injury to its flavor, etcAccording to my invention, I remedy this diflicult by the use of astrainer divided into a plura ity of operative sections or segments andso arranged that the milk passes through onesection at a time andprovided with means by which the stream of milk may be easily andquickly diverted from one operative section of the strainer to anothereither by making the strainer movable or otherwise.

In the form in which I have embodied my invention as hereinafter shown,the pail is divided into an open topped milk receiving chamber with anopening in the bottom for the passage of the milk into the pail properand beneath said opening is pivoted a pervious strainer disk dividedinto segments by suitable partitions and adapted to be turned so thatone segment at a time comes beneath the discharge opening. Thus when thedirt begins to accumulate in the section which is being used, the diskis rotated by means of a suitable handle to the next section which isclean and entirely free from dirt and so on until the milking iscomplete, the milk during all this time passing through a strainer whichis comparatively free from dirt.

I illustratemy invention in the accompanying drawing which shows amilking pail rovided with the device in its preferable lorm.

In the drawing, Figure 1 is a plan showing certain portions cut away,Fig. 2 is a section on the line a: :0 of Fig. 1 looking toward the rightand with the operating handle turned to the left, Fig. 3 is an elevationof the under side of the milk receiving chamber with the bottom of thesame in section, Figs. 4 and 5 are details of parts of the strainerdisk.

In the drawing, A represents the milk pail proper and B represents mystraining device as a whole which is fitted into the top of the milkpail resting on a flange l). The straining device consists of an opentop milk receiving chamber having a bottom provided with a relativelysmall opening.

As here shown, the open top of the chamber shown at b is annular inform, the bottom is composed of a horizontal diaphragm O and the sides bare inclined from the bottom inward to the mouth or opening preferablywith a curved or globular surface. As the result of this constructionthe milk, as it falls on the diaphragm O with the pail inclined as isusually the case in milking, will not spatter out of the opening but theoverhanging sides of the chamber will confine the milk in its place.

An opening is made in the bottom of the chamber B for the passage ordischarge of the milk into the pail proper and beneath this opening isthe sectional or segmental strainer. As here shown, this sectionalstrainer is made in the form of a pervious disk divided into suitablesegmental sections and an opening 0 is provided in the diaphragm C andadapted to register in turn with each segment as the pervious disk isturned on its pivot. As herein illustrated, the pcrvious strainer diskis made up o'l a ring (1 having a bottom formed of a diaphragm made ofcoarsely perforated metal. Within this ring is fitted a disk (1 made upol coarsely perforated metal and provided with. a series of radiatingpartitions d, eight in number as hereshown, extending outward from acentral hub d to the outer edge of the disk. These partitions d and thering d constitute the inclosing boundaries of the segments of thestrainer disk and the opening 0 is substantially the size of each ofthese segments.

Between the disk d and the diaphragm (Z a removable strainer cloth isplaced and the whole structure constitutes the upper strainingapparatus.

The strainer disk as described is confined adjacent to the under side ofthe diaphragm C by fitting within a ring or annular flange c secured tothe under side of said diaphragm. The disk is provided with a handle orspindle d which extends up through the diaphragm C and is bent laterallyto a point adjacent to the annular mouth for the purpose of indicatingthe position of the disk. Division marks 11 are made on the mouth forthe pur pose of setting the handle (Z in the correct position so thatthe opening 0 will register with one of segments of the strainer disk.

Provision is made for straining the milk a second time, namely, after itpasses through the strainer disk described and for this purpose astrainer cloth 6 is stretched over the flange c and secured in place bya 0 secured by a bayonet joint or otherwise. The lower edge of theflange 0 is low enough so that there will be left a considerable spa weor chamber between the cloth 0 and the diaphragm d whereby the milk willhave a chance to distribute itself after leaving the upper strainer.

In practical operation, the milk from the cow is directed into the milkreceiving ch amber B and passes down to the opening 0, thence throughthe segment of the strainer disk which is beneath the opening 0 andthence it passes through the lower strainer cloth into the pail. i l henany appreciable amount of dirt accumulates in the compar ment beneaththe opening 0, the handle d is turned until it comes opposite one of themarks 5 on the month of the vessel, bringing a new segment of thefiltering disk in operative position and this process is continued untilthe pail is filled, the entire amount of dirt being distributed. throughthe whole number of apartments in the filtering disk. The use of thisdevice insures milk which is substantially free from dirt and it isoperated with little or no trouble to the person using it. hen thestrainer is to be cleaned, the ring 6 is removed, the strainer cloth (2taken off, and the strainer disk slipped downward out of the ring 0, thehandle passing down through the opening 0. It is evident that a strainerhaving operative sections or segments adapted to be changed during theprocess .of milking may be arranged otherwise than here shown and thatmany modifications of the device may be made without de arting from thespirit of my invention.

1. The herein described milking pail having a milk receiving chamber astrainer divided into operative sections beneath said strainer and meansfor passing the milk through one of said sections at a time.

2. The herein described milking pail having a milk receiving chamber alaterally movable strainer beneath said strainer divided into aplurality of operative sections, means for passing the milk through oneof said sections and for changing the position of said strainer to bringother sections into operative position.

3. The herein described milking pail having a milk receiving chamber anopening therein through which the milk passes into the pail, a strainerbelow said openin said strainer and said opening being movable one withrelation to the other to shift the operative surface of the strainer.

4. The herein described milking pail having an open topped milk receivinchamber with a discharge opening in the bottom thereof, movable strainerbelow said opening and means for shifting the operative surface of saidst iner.

5. The herein described milking pail having an open topped milkreceiving chamber with a di charge opening in the bottom thereof,strainer pivoted beneath said opening and adapted to be turned to shiftthe operative surface of the strainer.

6. The herein described milking pail having an open topped milkreceiving chamber, a pervious disk pivoted beneath the bottom of saidchamber, said disk being divided into straining sections by inclosingpartitions, an opening being formed in said bottom to register with eachof said sections in turn as said disk is rotated.

7. The herein described milking pail having an open topped milkreceiving chamber, a pervious strainer disk pivoted beneath the bottomof said chamber said disk being divided into segmental sections byradial partitions, a segmental openin being formed in said bottom toregister with each of said sections in turn as the disk is rotated.

55. The herein described milking pail having an open topped milkreceiving chamber having an annular flan e on the under side of thebottom thereof, a perw'ous strainer disk fitting within said flangedivided into segmental sections by radial partitions and a peripheralflange, said disk having anoperating spindle extending up through saidbottom, segmental opening being formed in said bottom to register witheach of said sections the disk is rotated.

9. The herein described milking pail hav ing an open topped milkreceiving chamber having an annular flange on the under side of thebottom thereof, a cloth binding ring "fitting over said flange to securea strainer cloth thereon, a pervions segmental strainer disk fittinginside of said flange and made up of a ring having a perforated metaldiaphragm in its bottom, a perforated metal disk resting on saiddiaphragm, and adapted to confine a cloth strainer, an operating spindleextending up through the bottom of said chamber and radiating partitionsresting on said perforated disk to divide said pervious strainer intosegments, the bottom of said chamber having a segmental opening r is Sadapted to register with the segments of said strainer disk as thelatter is rotated.

10. The herein described. milking pail having an open top ed milkreceiving chamber,

having an annu ar flange on the under side of the bottom thereof, apervious segmental strainer disk fitting inside of said flange and madeup of a ring having a perforated metal dis resting on said diaphragmadapted to extending up through the bottom of said chamber and radiatingpartitions resting on said perforated disk to divide said perviousstrainer into segments, the bottom of said chamber having a segmentalopening adapted to register with the segments of said strainer disk asthe latter is rotated.

dic 1phragm in its bottom, a perforated metal 11. The here n describedmilking pail havopen top or mouth, a segmental strainer disk pivotedbeneath the bottom of said chamber having an operating handle extendingup through said bottom and laterally toward said mouth to form anindicator, saidbottom having a segmental opening to register with thesegments 01' said strainer disk, and indicating marks on the said mouthfor locating the confine a cloth strainer, an operating splndle positionof said indicator to assure the regis tering of said opening andsegments.

In testimony whereof I have aflixed my signature, in presence of twoWitnesses.

JOHN F. HORNE. Witnesses:

S. Vi. BATES, ELEANOR W. DENNIS.

